Yes, you can absolutely do that!
When you start your subscription, choose the monthly subscription option ($6) and follow the prompts to enter your payment details. Once that’s done, head to your account page and switch automatic renewals OFF.
As your monthly membership gets close to expiring, you’ll receive an automated email letting you know. That email will include a button you can use to easily renew for another month - or you can simply return to the website after your membership expires and add an additional month from the message shown on the screen. Automatic renewals will remain off unless you manually turn them back on.
Using this method, you’ll be able to dip in for a month whenever it suits you. If you have any questions, feel free to reach out.